Transgenic plants with tocopherol methyltransferase

Details Transgenic plants with tocopherol methyltransferase Transgenic plants with tocopherol methyltransferase

2003-09-30

2009-08-11

Kallis, Russell (Department: 1638)

Multicellular living organisms and unmodified parts thereof and

Method of introducing a polynucleotide molecule into or...

The polynucleotide alters fat, fatty oil, ester-type wax, or...

C800S298000, C800S305000, C800S306000, C800S312000, C800S314000, C800S315000, C800S317200, C800S320000, C800S320100, C800S320200, C800S320300, C800S322000

Reexamination Certificate

active

07572952

ABSTRACT:
Disclosed is are gene sequences encoding γ-tocopherol methyltransferases from photosynthetic organisms. The enzyme γ-tocopherol methyltransferase catalyzes the methylation of γ-tocopherol to yield α-tocopherol, the most bioactive species of tocopherol. γ-tocopherol methyltransferase is believed to be involved in regulating the relative amounts of the various tocopherols present in photosynthetic organisms. By introducing a genetic construct having a γ-tocopherol methyltransferase coding sequence placed under the control of a plant promoter into a plant, transgenic plants can be made having altered γ-tocopherol methyltransferase expression, to effect dramatic changes in the tocopherol profile of the plant. Transgenic plants can be made that have α-tocopherol as the predominant tocopherol in their seeds and oils.

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